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1 766 jeremybenn
#### This script is meant to be sourced by ltconfig.
2
 
3
# ltcf-cxx.sh - Create a C++ compiler specific configuration
4
#
5
# Copyright (C) 1996-1999, 2000, 2001, 2003 Free Software Foundation, Inc.
6
# Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
7
#
8
# Original C++ support by:Gary V. Vaughan <gvv@techie.com>
9
#    Alexandre Oliva <oliva@lsd.ic.unicamp.br>
10
#    Ossama Othman <ossama@debian.org>
11
#    Thomas Thanner <tanner@gmx.de>
12
#
13
# This file is free software; you can redistribute it and/or modify it
14
# under the terms of the GNU General Public License as published by
15
# the Free Software Foundation; either version 2 of the License, or
16
# (at your option) any later version.
17
#
18
# This program is distributed in the hope that it will be useful, but
19
# WITHOUT ANY WARRANTY; without even the implied warranty of
20
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21
# General Public License for more details.
22
#
23
# You should have received a copy of the GNU General Public License
24
# along with this program; if not, write to the Free Software
25
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26
#
27
# As a special exception to the GNU General Public License, if you
28
# distribute this file as part of a program that contains a
29
# configuration script generated by Autoconf, you may include it under
30
# the same distribution terms that you use for the rest of that program.
31
 
32
 
33
# Source file extension for C++ test sources.
34
ac_ext=cc
35
 
36
# Object file extension for compiled C++ test sources.
37
objext=o
38
 
39
# Code to be used in simple compile tests
40
lt_simple_compile_test_code="int some_variable = 0;"
41
 
42
# Code to be used in simple link tests
43
lt_simple_link_test_code='int main(int, char *[]) { return (0); }'
44
 
45
# C++ compiler
46
CXX=${CXX-c++}
47
 
48
# ltmain only uses $CC for tagged configurations so make sure $CC is set.
49
CC=${CC-"$CXX"}
50
CFLAGS=${CFLAGS-"$CXXFLAGS"}
51
 
52
# Allow CC to be a program name with arguments.
53
set dummy $CC
54
compiler=$2
55
cc_basename=`$echo X"$compiler" | $Xsed -e 's%^.*/%%'`
56
 
57
# Check if we are using GNU gcc  (taken/adapted from configure script)
58
# We need to check here since "--with-gcc" is set at configure time,
59
# not ltconfig time!
60
cat > conftest.$ac_ext <<EOF
61
#ifdef __GNUC__
62
  yes;
63
#endif
64
EOF
65
if { ac_try='${CC-c++} -E conftest.$ac_ext'; { (eval echo \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
66
  with_gcc=yes
67
 
68
  # Set up default GNU C++ configuration
69
 
70
  # Check if GNU C++ uses GNU ld as the underlying linker, since the
71
  # archiving commands below assume that GNU ld is being used.  The
72
  # assumption here is that the linker is going to be the same as that
73
  # used by the C compiler.  For the purposes of GCC, this is ok, but
74
  # if someone uses g++ along with a non-GNU C compiler that doesn't
75
  # use GNU ld, we may lose.  This is ok for the toolchain tree, since
76
  # the only users of ltcf-cxx.sh are libstdc++-v3 and libjava,
77
  # anyway, and those use both gcc and g++, so the settings are bound
78
  # to be the same.
79
 
80
  if test "$with_gnu_ld" = yes; then
81
    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
82
    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
83
 
84
    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
85
    export_dynamic_flag_spec='${wl}--export-dynamic'
86
 
87
    # If archive_cmds runs LD, not CC, wlarc should be empty
88
    # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
89
    #     investigate it a little bit more. (MM)
90
    wlarc='${wl}'
91
 
92
    # ancient GNU ld didn't support --whole-archive et. al.
93
    if eval "`$CC -print-prog-name=ld` --help 2>&1" | \
94
        egrep 'no-whole-archive' > /dev/null; then
95
      whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
96
    else
97
      whole_archive_flag_spec=
98
    fi
99
  else
100
    wlarc=
101
 
102
    # A generic and very simple default shared library creation
103
    # command for GNU C++ for the case where it uses the native
104
    # linker, instead of GNU ld.  If possible, this setting should
105
    # overridden to take advantage of the native linker features on
106
    # the platform it is being used on.
107
    archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
108
  fi
109
 
110
  # Commands to make compiler produce verbose output that lists
111
  # what "hidden" libraries, object files and flags are used when
112
  # linking a shared library.
113
  output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
114
 
115
else
116
  with_gcc=no
117
  wlarc=
118
fi
119
 
120
# PORTME: fill in a description of your system's C++ link characteristics
121
case $host_os in
122
  aix3*)
123
    # FIXME: insert proper C++ library support
124
    ld_shlibs=no
125
    ;;
126
  aix4* | aix5*)
127
    archive_cmds=''
128
    hardcode_direct=yes
129
    hardcode_libdir_separator=':'
130
    link_all_deplibs=yes
131
    file_list_spec='${wl}-f,'
132
    # When large executables or shared objects are built, AIX ld can
133
    # have problems creating the table of contents.  If linking a library
134
    # or program results in "error TOC overflow" add -mminimal-toc to
135
    # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
136
    # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
137
    if test "$with_gcc" = yes; then
138
      case $host_os in aix4.[012]|aix4.[012].*)
139
      # We only want to do this on AIX 4.2 and lower, the check
140
      # below for broken collect2 doesn't work under 4.3+
141
        collect2name=`${CC} -print-prog-name=collect2`
142
        if test -f "$collect2name" && \
143
           strings "$collect2name" | grep resolve_lib_name >/dev/null
144
        then
145
          # We have reworked collect2
146
          hardcode_direct=yes
147
        else
148
          # We have old collect2
149
          hardcode_direct=unsupported
150
          # It fails to find uninstalled libraries when the uninstalled
151
          # path is not listed in the libpath.  Setting hardcode_minus_L
152
          # to unsupported forces relinking
153
          hardcode_minus_L=yes
154
          hardcode_libdir_flag_spec='-L$libdir'
155
          hardcode_libdir_separator=
156
        fi
157
      esac
158
      shared_flag='-shared'
159
    else
160
      # not using gcc
161
      if test "$host_cpu" = ia64; then
162
        shared_flag='${wl}-G'
163
      else
164
        shared_flag='${wl}-bM:SRE'
165
      fi
166
    fi
167
 
168
    if test "$host_cpu" = ia64; then
169
      # On IA64, the linker does run time linking by default, so we don't
170
      # have to do anything special.
171
      aix_use_runtimelinking=no
172
      if test $with_gnu_ld = no; then
173
        exp_sym_flag='-Bexport'
174
        no_entry_flag=""
175
      fi
176
    else
177
      # Test if we are trying to use run time linking, or normal AIX style linking.
178
      # If -brtl is somewhere in LDFLAGS, we need to do run time linking.
179
      aix_use_runtimelinking=no
180
      for ld_flag in $LDFLAGS; do
181
        if (test $ld_flag = "-brtl" || test $ld_flag = "-Wl,-brtl" ); then
182
          aix_use_runtimelinking=yes
183
          break
184
        fi
185
      done
186
      exp_sym_flag='-bexport'
187
      no_entry_flag='-bnoentry'
188
    fi
189
    # It seems that -bexpall does not export symbols beginning with
190
    # underscore (_), so it is better to generate a list of symbols to export.
191
    always_export_symbols=yes
192
    if test "$aix_use_runtimelinking" = yes; then
193
      hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
194
      allow_undefined_flag=' -Wl,-G'
195
      archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}-brtl \${wl}$exp_sym_flag:\$export_symbols"
196
     else
197
      if test "$host_cpu" = ia64; then
198
        if test $with_gnu_ld = no; then
199
          hardcode_libdir_flag_spec='${wl}-R $libdir:/usr/lib:/lib'
200
          allow_undefined_flag="-z nodefs"
201
          archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}${allow_undefined_flag} '"\${wl}$no_entry_flag \${wl}$exp_sym_flag:\$export_symbols"
202
        fi
203
      else
204
        hardcode_libdir_flag_spec='${wl}-blibpath:$libdir:/usr/lib:/lib'
205
        # Warning - without using the other run time loading flags, -berok will
206
        #           link without error, but may produce a broken library.
207
        no_undefined_flag=' ${wl}-bnoerok'
208
        allow_undefined_flag=' ${wl}-berok'
209
        # -bexpall does not export symbols beginning with underscore (_)
210
        always_export_symbols=yes
211
        # Exported symbols can be pulled into shared objects from archives
212
        whole_archive_flag_spec=' '
213
        build_libtool_need_lc=yes
214
        # This is similar to how AIX traditionally builds it's shared libraries.
215
        archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs $compiler_flags ${wl}-bE:$export_symbols ${wl}-bnoentry${allow_undefined_flag}~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$soname'
216
      fi
217
    fi
218
    ;;
219
  chorus*)
220
    case $cc_basename in
221
      *)
222
        # FIXME: insert proper C++ library support
223
        ld_shlibs=no
224
        ;;
225
    esac
226
    ;;
227
 
228
  darwin* | rhapsody*)
229
    case "$host_os" in
230
        rhapsody* | darwin1.[[012]])
231
            allow_undefined_flag='-undefined suppress'
232
        ;;
233
        *) # Darwin 1.3 on
234
            if test -z ${MACOSX_DEPLOYMENT_TARGET} ; then
235
                allow_undefined_flag='-flat_namespace -undefined suppress'
236
      else
237
        case ${MACOSX_DEPLOYMENT_TARGET} in
238
            10.[[012]])
239
                allow_undefined_flag='-flat_namespace -undefined suppress'
240
            ;;
241
            10.*)
242
                allow_undefined_flag='-undefined dynamic_lookup'
243
            ;;
244
        esac
245
    fi
246
    ;;
247
    esac
248
    # Disable shared library build on OS-X older than 10.3.
249
    case $host_os in
250
        darwin[1-6]*)
251
            can_build_shared=no
252
            ;;
253
        darwin7*)
254
            can_build_shared=yes
255
            ;;
256
    esac
257
    output_verbose_link_cmd='echo'
258
 
259
    archive_cmds='$CXX -dynamiclib $allow_undefined_flag -o $lib $libobjs $deplibs $compiler_flags -install_name $rpath/$soname $verstring'
260
    module_cmds='$CC ${wl}-bind_at_load $allow_undefined_flag -o $lib -bundle $libobjs $deplibs$compiler_flags'
261
 
262
    # Don't fix this by using the ld -exported_symbols_list flag,
263
    # it doesn't exist in older darwin ld's
264
    archive_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC -r ${wl}-bind_at_load -keep_private_externs -nostdlib -o ${lib}-master.o $libobjs~$CC -dynamiclib $allow_undefined_flag -o $lib ${lib}-master.o $deplibs $compiler_flags -install_name $rpath/$soname $verstring~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
265
    module_expsym_cmds='sed -e "s,#.*,," -e "s,^[    ]*,," -e "s,^\(..*\),_&," < $export_symbols > $output_objdir/${libname}-symbols.expsym~$CC $allow_undefined_flag  -o $lib -bundle $libobjs $deplibs$compiler_flags~nmedit -s $output_objdir/${libname}-symbols.expsym ${lib}'
266
    hardcode_direct=no
267
    hardcode_automatic=yes
268
    hardcode_shlibpath_var=unsupported
269
    link_all_deplibs=yes
270
    ;;
271
 
272
  dgux*)
273
    case $cc_basename in
274
      ec++)
275
        # FIXME: insert proper C++ library support
276
        ld_shlibs=no
277
        ;;
278
      ghcx)
279
        # Green Hills C++ Compiler
280
        # FIXME: insert proper C++ library support
281
        ld_shlibs=no
282
        ;;
283
      *)
284
        # FIXME: insert proper C++ library support
285
        ld_shlibs=no
286
        ;;
287
    esac
288
    ;;
289
  freebsd[12]*)
290
    # C++ shared libraries reported to be fairly broken before switch to ELF
291
    ld_shlibs=no
292
    ;;
293
  freebsd* | kfreebsd*-gnu)
294
    # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
295
    # conventions
296
    ld_shlibs=yes
297
    ;;
298
  gnu*)
299
    ;;
300
  hpux*)
301
    if test $with_gnu_ld = no; then
302
      case "$host_cpu" in
303
        ia64*)
304
          hardcode_libdir_flag_spec='-L$libdir'
305
          hardcode_shlibpath_var=no ;;
306
        *)
307
          hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir' ;;
308
      esac
309
      hardcode_direct=yes
310
      hardcode_libdir_separator=:
311
      export_dynamic_flag_spec='${wl}-E'
312
    fi
313
    hardcode_minus_L=yes # Not in the search PATH, but as the default
314
                         # location of the library.
315
 
316
    case $cc_basename in
317
      CC)
318
        # FIXME: insert proper C++ library support
319
        ld_shlibs=no
320
        ;;
321
      aCC)
322
        case $host_os in
323
        hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -b ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
324
        *) archive_cmds='$CC -b ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
325
        esac
326
        # Commands to make compiler produce verbose output that lists
327
        # what "hidden" libraries, object files and flags are used when
328
        # linking a shared library.
329
        #
330
        # There doesn't appear to be a way to prevent this compiler from
331
        # explicitly linking system object files so we need to strip them
332
        # from the output so that they don't get included in the library
333
        # dependencies.
334
        output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | egrep "\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
335
        ;;
336
      *)
337
        if test $with_gcc = yes; then
338
          if test $with_gnu_ld = no; then
339
            case "$host_os" in
340
            hpux9*) archive_cmds='$rm $output_objdir/$soname~$CC -shared -nostdlib -fPIC ${wl}+b ${wl}$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test $output_objdir/$soname = $lib || mv $output_objdir/$soname $lib' ;;
341
            *)
342
              case "$host_cpu" in
343
                ia64*)
344
                  archive_cmds='$LD -b +h $soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags' ;;
345
                *)
346
                  archive_cmds='$CC -shared -nostdlib -fPIC ${wl}+h ${wl}$soname ${wl}+b ${wl}$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags' ;;
347
              esac
348
              ;;
349
            esac
350
          fi
351
        else
352
          # FIXME: insert proper C++ library support
353
          ld_shlibs=no
354
        fi
355
        ;;
356
    esac
357
    ;;
358
  irix5* | irix6*)
359
    case $cc_basename in
360
      CC)
361
        # SGI C++
362
        archive_cmds='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
363
 
364
        # Archives containing C++ object files must be created using
365
        # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
366
        # necessary to make sure instantiated templates are included
367
        # in the archive.
368
        old_archive_cmds='$CC -ar -WR,-u -o $oldlib $oldobjs'
369
        ;;
370
      *)
371
        if test "$with_gcc" = yes; then
372
          if test "$with_gnu_ld" = no; then
373
            archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
374
          else
375
            archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
376
          fi
377
        fi
378
        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
379
        hardcode_libdir_separator=:
380
        link_all_deplibs=yes
381
        ;;
382
    esac
383
    ;;
384
  linux*)
385
    case $cc_basename in
386
      KCC)
387
        # Kuck and Associates, Inc. (KAI) C++ Compiler
388
 
389
        # KCC will only create a shared library if the output file
390
        # ends with ".so" (or ".sl" for HP-UX), so rename the library
391
        # to its proper name (with version) after linking.
392
        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
393
        archive_expsym_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib ${wl}-retain-symbols-file,$export_symbols; mv \$templib $lib'
394
 
395
        # Commands to make compiler produce verbose output that lists
396
        # what "hidden" libraries, object files and flags are used when
397
        # linking a shared library.
398
        #
399
        # There doesn't appear to be a way to prevent this compiler from
400
        # explicitly linking system object files so we need to strip them
401
        # from the output so that they don't get included in the library
402
        # dependencies.
403
        output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest.so 2>&1 | egrep "ld"`; rm -f libconftest.so; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
404
 
405
        hardcode_libdir_flag_spec='${wl}--rpath,$libdir'
406
        export_dynamic_flag_spec='${wl}--export-dynamic'
407
 
408
        # Archives containing C++ object files must be created using
409
        # "CC -Bstatic", where "CC" is the KAI C++ compiler.
410
        old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
411
        ;;
412
      cxx)
413
        # Compaq C++
414
        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
415
        archive_expsym_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname  -o $lib ${wl}-retain-symbols-file $wl$export_symbols'
416
 
417
        runpath_var=LD_RUN_PATH
418
        hardcode_libdir_flag_spec='-rpath $libdir'
419
        hardcode_libdir_separator=:
420
 
421
        # Commands to make compiler produce verbose output that lists
422
        # what "hidden" libraries, object files and flags are used when
423
        # linking a shared library.
424
        #
425
        # There doesn't appear to be a way to prevent this compiler from
426
        # explicitly linking system object files so we need to strip them
427
        # from the output so that they don't get included in the library
428
        # dependencies.
429
        output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
430
        ;;
431
    esac
432
    ;;
433
  lynxos*)
434
    # FIXME: insert proper C++ library support
435
    ld_shlibs=no
436
    ;;
437
  m88k*)
438
    # FIXME: insert proper C++ library support
439
    ld_shlibs=no
440
    ;;
441
  mvs*)
442
    case $cc_basename in
443
      cxx)
444
        # FIXME: insert proper C++ library support
445
        ld_shlibs=no
446
        ;;
447
      *)
448
        # FIXME: insert proper C++ library support
449
        ld_shlibs=no
450
        ;;
451
    esac
452
    ;;
453
  netbsd* | knetbsd*-gnu)
454
    # NetBSD uses g++ - do we need to do anything?
455
    ;;
456
  osf3*)
457
    case $cc_basename in
458
      KCC)
459
        # Kuck and Associates, Inc. (KAI) C++ Compiler
460
 
461
        # KCC will only create a shared library if the output file
462
        # ends with ".so" (or ".sl" for HP-UX), so rename the library
463
        # to its proper name (with version) after linking.
464
        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
465
 
466
        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
467
        hardcode_libdir_separator=:
468
 
469
        # Archives containing C++ object files must be created using
470
        # "CC -Bstatic", where "CC" is the KAI C++ compiler.
471
        old_archive_cmds='$CC -Bstatic -o $oldlib $oldobjs'
472
 
473
        ;;
474
      RCC)
475
        # Rational C++ 2.4.1
476
        # FIXME: insert proper C++ library support
477
        ld_shlibs=no
478
        ;;
479
      cxx)
480
        allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
481
        archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $soname `test -n "$verstring" && echo ${wl}-set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
482
 
483
        hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
484
        hardcode_libdir_separator=:
485
 
486
        # Commands to make compiler produce verbose output that lists
487
        # what "hidden" libraries, object files and flags are used when
488
        # linking a shared library.
489
        #
490
        # There doesn't appear to be a way to prevent this compiler from
491
        # explicitly linking system object files so we need to strip them
492
        # from the output so that they don't get included in the library
493
        # dependencies.
494
        output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
495
        ;;
496
      *)
497
        if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
498
          allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
499
          archive_cmds='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
500
 
501
          hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
502
          hardcode_libdir_separator=:
503
 
504
          # Commands to make compiler produce verbose output that lists
505
          # what "hidden" libraries, object files and flags are used when
506
          # linking a shared library.
507
          output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
508
    else
509
          # FIXME: insert proper C++ library support
510
          ld_shlibs=no
511
    fi
512
        ;;
513
    esac
514
    ;;
515
  osf4* | osf5*)
516
    case $cc_basename in
517
      KCC)
518
        # Kuck and Associates, Inc. (KAI) C++ Compiler
519
 
520
        # KCC will only create a shared library if the output file
521
        # ends with ".so" (or ".sl" for HP-UX), so rename the library
522
        # to its proper name (with version) after linking.
523
        archive_cmds='templib=`echo $lib | sed -e "s/\.so\..*/\.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
524
 
525
        hardcode_libdir_flag_spec='${wl}-rpath,$libdir'
526
        hardcode_libdir_separator=:
527
 
528
        # Archives containing C++ object files must be created using
529
        # the KAI C++ compiler.
530
        old_archive_cmds='$CC -o $oldlib $oldobjs'
531
        ;;
532
      RCC)
533
        # Rational C++ 2.4.1
534
        # FIXME: insert proper C++ library support
535
        ld_shlibs=no
536
        ;;
537
      cxx)
538
        allow_undefined_flag=' -expect_unresolved \*'
539
        archive_cmds='$CC -shared${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && echo -set_version $verstring` -update_registry ${objdir}/so_locations -o $lib'
540
        archive_expsym_cmds='for i in `cat $export_symbols`; do printf "-exported_symbol " >> $lib.exp; echo "\$i" >> $lib.exp; done~
541
          echo "-hidden">> $lib.exp~
542
          $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname -Wl,-input -Wl,$lib.exp  `test -n "$verstring" && echo -set_version $verstring` -update_registry $objdir/so_locations -o $lib~
543
          $rm $lib.exp'
544
 
545
        hardcode_libdir_flag_spec='-rpath $libdir'
546
        hardcode_libdir_separator=:
547
 
548
        # Commands to make compiler produce verbose output that lists
549
        # what "hidden" libraries, object files and flags are used when
550
        # linking a shared library.
551
        #
552
        # There doesn't appear to be a way to prevent this compiler from
553
        # explicitly linking system object files so we need to strip them
554
        # from the output so that they don't get included in the library
555
        # dependencies.
556
        output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | grep "ld" | grep -v "ld:"`; templist=`echo $templist | sed "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
557
        ;;
558
      *)
559
        if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
560
          allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
561
          archive_cmds='$CC -shared -nostdlib ${allow_undefined_flag} $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-msym ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` ${wl}-update_registry ${wl}${objdir}/so_locations -o $lib'
562
 
563
          hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
564
          hardcode_libdir_separator=:
565
 
566
          # Commands to make compiler produce verbose output that lists
567
          # what "hidden" libraries, object files and flags are used when
568
          # linking a shared library.
569
          output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep "\-L"'
570
    else
571
          # FIXME: insert proper C++ library support
572
          ld_shlibs=no
573
    fi
574
        ;;
575
    esac
576
    ;;
577
  psos*)
578
    # FIXME: insert proper C++ library support
579
    ld_shlibs=no
580
    ;;
581
  sco*)
582
    case $cc_basename in
583
      CC)
584
        # FIXME: insert proper C++ library support
585
        ld_shlibs=no
586
        ;;
587
      *)
588
        # FIXME: insert proper C++ library support
589
        ld_shlibs=no
590
        ;;
591
    esac
592
    ;;
593
  sunos4*)
594
    case $cc_basename in
595
      CC)
596
        # Sun C++ 4.x
597
        # FIXME: insert proper C++ library support
598
        ld_shlibs=no
599
        ;;
600
      lcc)
601
        # Lucid
602
        # FIXME: insert proper C++ library support
603
        ld_shlibs=no
604
        ;;
605
      *)
606
        # FIXME: insert proper C++ library support
607
        ld_shlibs=no
608
        ;;
609
    esac
610
    ;;
611
  solaris*)
612
    case $cc_basename in
613
      CC)
614
        # Sun C++ 4.2, 5.x and Centerline C++
615
        no_undefined_flag=' -zdefs'
616
        archive_cmds='$CC -G${allow_undefined_flag} -nolib -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
617
        archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
618
        $CC -G${allow_undefined_flag} -nolib ${wl}-M ${wl}$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
619
 
620
        hardcode_libdir_flag_spec='-R$libdir'
621
        hardcode_shlibpath_var=no
622
        case $host_os in
623
          solaris2.[0-5] | solaris2.[0-5].*) ;;
624
          *)
625
            # The C++ compiler is used as linker so we must use $wl
626
            # flag to pass the commands to the underlying system
627
            # linker.
628
            # Supported since Solaris 2.6 (maybe 2.5.1?)
629
            whole_archive_flag_spec='${wl}-z ${wl}allextract$convenience ${wl}-z ${wl}defaultextract'
630
            ;;
631
        esac
632
        link_all_deplibs=yes
633
 
634
        # Commands to make compiler produce verbose output that lists
635
        # what "hidden" libraries, object files and flags are used when
636
        # linking a shared library.
637
        #
638
        # There doesn't appear to be a way to prevent this compiler from
639
        # explicitly linking system object files so we need to strip them
640
        # from the output so that they don't get included in the library
641
        # dependencies.
642
        output_verbose_link_cmd='templist=`$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep "\-R|\-L"`; list=""; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; echo $list'
643
 
644
        # Archives containing C++ object files must be created using
645
        # "CC -xar", where "CC" is the Sun C++ compiler.  This is
646
        # necessary to make sure instantiated templates are included
647
        # in the archive.
648
        old_archive_cmds='$CC -xar -o $oldlib $oldobjs'
649
        ;;
650
      gcx)
651
        # Green Hills C++ Compiler
652
        archive_cmds='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
653
 
654
        # The C++ compiler must be used to create the archive.
655
        old_archive_cmds='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
656
        ;;
657
      *)
658
        # GNU C++ compiler with Solaris linker
659
        if test "$with_gcc" = yes && test "$with_gnu_ld" = no; then
660
          no_undefined_flag=' ${wl}-z ${wl}defs'
661
          if $CC --version | egrep -v '^2\.7' > /dev/null; then
662
            archive_cmds='$CC -shared -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
663
            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
664
                $CC -shared -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
665
 
666
            # Commands to make compiler produce verbose output that lists
667
            # what "hidden" libraries, object files and flags are used when
668
            # linking a shared library.
669
            output_verbose_link_cmd="$CC -shared $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
670
          else
671
            # g++ 2.7 appears to require `-G' NOT `-shared' on this
672
            # platform.
673
            archive_cmds='$CC -G -nostdlib $LDFLAGS $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-h $wl$soname -o $lib'
674
            archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
675
                $CC -G -nostdlib ${wl}-M $wl$lib.exp -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$rm $lib.exp'
676
 
677
            # Commands to make compiler produce verbose output that lists
678
            # what "hidden" libraries, object files and flags are used when
679
            # linking a shared library.
680
            output_verbose_link_cmd="$CC -G $CFLAGS -v conftest.$objext 2>&1 | egrep \"\-L\""
681
          fi
682
 
683
          hardcode_libdir_flag_spec='${wl}-R $wl$libdir'
684
        fi
685
        ;;
686
    esac
687
    ;;
688
  tandem*)
689
    case $cc_basename in
690
      NCC)
691
        # NonStop-UX NCC 3.20
692
        # FIXME: insert proper C++ library support
693
        ld_shlibs=no
694
        ;;
695
      *)
696
        # FIXME: insert proper C++ library support
697
        ld_shlibs=no
698
        ;;
699
    esac
700
    ;;
701
  tpf*)
702
    ld_shlibs=yes
703
    ;;
704
  unixware*)
705
    # FIXME: insert proper C++ library support
706
    ld_shlibs=no
707
    ;;
708
  vxworks*)
709
    # FIXME: insert proper C++ library support
710
    ld_shlibs=no
711
    ;;
712
  *)
713
    # FIXME: insert proper C++ library support
714
    ld_shlibs=no
715
    ;;
716
esac
717
 
718
 
719
## Compiler Characteristics: PIC flags, static flags, etc
720
 
721
# We don't use cached values here since only the C compiler
722
# characteristics should be cached.
723
ac_cv_prog_cc_pic=
724
ac_cv_prog_cc_shlib=
725
ac_cv_prog_cc_wl=
726
ac_cv_prog_cc_static=
727
ac_cv_prog_cc_no_builtin=
728
ac_cv_prog_cc_can_build_shared=$can_build_shared
729
 
730
ac_cv_prog_cc_pic_works=
731
ac_cv_prog_cc_static_works=
732
 
733
if test "$with_gcc" = yes; then
734
  ac_cv_prog_cc_wl='-Wl,'
735
  ac_cv_prog_cc_static='-static'
736
 
737
  case $host_os in
738
  aix*)
739
    # All AIX code is PIC.
740
    if test "$host_cpu" = ia64; then
741
      # AIX 5 now supports IA64 processor
742
      lt_cv_prog_cc_static='-Bstatic'
743
    else
744
      lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
745
    fi
746
    ;;
747
  amigaos*)
748
    # FIXME: we need at least 68020 code to build shared libraries, but
749
    # adding the `-m68020' flag to GCC prevents building anything better,
750
    # like `-m68040'.
751
    ac_cv_prog_cc_pic='-m68020 -resident32 -malways-restore-a4'
752
    ;;
753
  beos* | irix5* | irix6* | osf3* | osf4* | osf5*)
754
    # PIC is the default for these OSes.
755
    ;;
756
  cygwin* | mingw* | os2*)
757
    # This hack is so that the source file can tell whether it is being
758
    # built for inclusion in a dll (and should export symbols for example).
759
    ac_cv_prog_cc_pic='-DDLL_EXPORT'
760
    ;;
761
  darwin* | rhapsody*)
762
    # PIC is the default on this platform
763
    # Common symbols not allowed in MH_DYLIB files
764
    ac_cv_prog_cc_pic='-fno-common'
765
    ;;
766
  *djgpp*)
767
    # DJGPP does not support shared libraries at all
768
    ac_cv_prog_cc_pic=
769
    ;;
770
  sysv4*MP*)
771
    if test -d /usr/nec; then
772
      ac_cv_prog_cc_pic=-Kconform_pic
773
    fi
774
    ;;
775
  *)
776
    ac_cv_prog_cc_pic='-fPIC'
777
    ;;
778
  esac
779
else
780
  case $host_os in
781
    aix4* | aix5*)
782
      # All AIX code is PIC.
783
      if test "$host_cpu" = ia64; then
784
        # AIX 5 now supports IA64 processor
785
        lt_cv_prog_cc_static='-Bstatic'
786
      else
787
        lt_cv_prog_cc_static='-bnso -bI:/lib/syscalls.exp'
788
      fi
789
      ;;
790
    chorus*)
791
      case $cc_basename in
792
      cxch68)
793
        # Green Hills C++ Compiler
794
        # ac_cv_prog_cc_static="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
795
        ;;
796
      esac
797
      ;;
798
    dgux*)
799
      case $cc_basename in
800
        ec++)
801
          ac_cv_prog_cc_pic='-KPIC'
802
          ;;
803
        ghcx)
804
          # Green Hills C++ Compiler
805
          ac_cv_prog_cc_pic='-pic'
806
          ;;
807
        *)
808
          ;;
809
      esac
810
      ;;
811
    freebsd* | kfreebsd*-gnu)
812
      # FreeBSD uses GNU C++
813
      ;;
814
    gnu*)
815
      ;;
816
    hpux9* | hpux10* | hpux11*)
817
      case $cc_basename in
818
        CC)
819
          ac_cv_prog_cc_wl='-Wl,'
820
          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
821
          ac_cv_prog_cc_pic='+Z'
822
          ;;
823
        aCC)
824
          ac_cv_prog_cc_wl='-Wl,'
825
          ac_cv_prog_cc_static="${ac_cv_prog_cc_wl}-a ${ac_cv_prog_cc_wl}archive"
826
          ac_cv_prog_cc_pic='+Z'
827
          ;;
828
        *)
829
          ;;
830
      esac
831
      ;;
832
    irix5* | irix6*)
833
      case $cc_basename in
834
        CC)
835
          ac_cv_prog_cc_wl='-Wl,'
836
          ac_cv_prog_cc_static='-non_shared'
837
          ac_cv_prog_cc_pic='-KPIC'
838
          ;;
839
        *)
840
          ;;
841
      esac
842
      ;;
843
    linux*)
844
      case $cc_basename in
845
        KCC)
846
          # KAI C++ Compiler
847
          ac_cv_prog_cc_wl='--backend -Wl,'
848
          ac_cv_prog_cc_pic='-fPIC'
849
          ;;
850
        cxx)
851
          # Compaq C++
852
          # Make sure the PIC flag is empty.  It appears that all Alpha
853
          # Linux and Compaq Tru64 Unix objects are PIC.
854
          ac_cv_prog_cc_pic=
855
          ac_cv_prog_cc_static='-non_shared'
856
          ;;
857
        *)
858
          ;;
859
      esac
860
      ;;
861
    lynxos*)
862
      ;;
863
    m88k*)
864
      ;;
865
    mvs*)
866
      case $cc_basename in
867
        cxx)
868
          ac_cv_prog_cc_pic='-W c,exportall'
869
          ;;
870
        *)
871
          ;;
872
      esac
873
      ;;
874
    netbsd*)
875
      ;;
876
    osf3* | osf4* | osf5*)
877
      case $cc_basename in
878
        KCC)
879
          ac_cv_prog_cc_wl='--backend -Wl,'
880
          ;;
881
        RCC)
882
          # Rational C++ 2.4.1
883
          ac_cv_prog_cc_pic='-pic'
884
          ;;
885
        cxx)
886
          # Digital/Compaq C++
887
          ac_cv_prog_cc_wl='-Wl,'
888
          # Make sure the PIC flag is empty.  It appears that all Alpha
889
          # Linux and Compaq Tru64 Unix objects are PIC.
890
          ac_cv_prog_cc_pic=
891
          ac_cv_prog_cc_static='-non_shared'
892
          ;;
893
        *)
894
          ;;
895
      esac
896
      ;;
897
    psos*)
898
      ;;
899
    sco*)
900
      case $cc_basename in
901
        CC)
902
          ac_cv_prog_cc_pic='-fPIC'
903
          ;;
904
        *)
905
          ;;
906
      esac
907
      ;;
908
    solaris*)
909
      case $cc_basename in
910
        CC)
911
          # Sun C++ 4.2, 5.x and Centerline C++
912
          ac_cv_prog_cc_pic='-KPIC'
913
          ac_cv_prog_cc_static='-Bstatic'
914
          ac_cv_prog_cc_wl='-Qoption ld '
915
          ;;
916
        gcx)
917
          # Green Hills C++ Compiler
918
          ac_cv_prog_cc_pic='-PIC'
919
          ;;
920
        *)
921
          ;;
922
      esac
923
      ;;
924
    sunos4*)
925
      case $cc_basename in
926
        CC)
927
          # Sun C++ 4.x
928
          ac_cv_prog_cc_pic='-pic'
929
          ac_cv_prog_cc_static='-Bstatic'
930
          ;;
931
        lcc)
932
          # Lucid
933
          ac_cv_prog_cc_pic='-pic'
934
          ;;
935
        *)
936
          ;;
937
      esac
938
      ;;
939
    tandem*)
940
      case $cc_basename in
941
        NCC)
942
          # NonStop-UX NCC 3.20
943
          ac_cv_prog_cc_pic='-KPIC'
944
          ;;
945
        *)
946
          ;;
947
      esac
948
      ;;
949
    unixware*)
950
      ;;
951
    vxworks*)
952
      ;;
953
    *)
954
      ac_cv_prog_cc_can_build_shared=no
955
      ;;
956
  esac
957
fi
958
 
959
case "$host_os" in
960
    # Platforms which do not suport PIC and -DPIC is meaningless
961
    # on them:
962
    *djgpp*)
963
      ac_cv_prog_cc_pic=
964
      ;;
965
    *)
966
      ac_cv_prog_cc_pic="$ac_cv_prog_cc_pic -DPIC"
967
      ;;
968
esac
969
 
970
 
971
# Figure out "hidden" C++ library dependencies from verbose
972
# compiler output whening linking a shared library.
973
cat > conftest.$ac_ext <<EOF
974
class Foo
975
{
976
public:
977
  Foo (void) { a = 0; }
978
private:
979
  int a;
980
};
981
EOF
982
 
983
 
984
if (eval $ac_compile) 2>&5; then
985
  # Parse the compiler output and extract the necessary
986
  # objects, libraries and library flags.
987
 
988
  # Sentinel used to keep track of whether or not we are before
989
  # the conftest object file.
990
  pre_test_object_deps_done=no
991
 
992
  for p in `eval $output_verbose_link_cmd`; do
993
 
994
    case $p in
995
 
996
    -L* | -R* | -l*)
997
       # Some compilers place space between "-{L,R}" and the path.
998
       # Remove the space.
999
       if test $p = "-L" \
1000
          || test $p = "-R"; then
1001
         prev=$p
1002
         continue
1003
       else
1004
         prev=
1005
       fi
1006
 
1007
       if test "$pre_test_object_deps_done" = no; then
1008
         case $p in
1009
         -L* | -R*)
1010
           # Internal compiler library paths should come after those
1011
           # provided the user.  The postdeps already come after the
1012
           # user supplied libs so there is no need to process them.
1013
           if test -z "$compiler_lib_search_path"; then
1014
             compiler_lib_search_path="${prev}${p}"
1015
           else
1016
             compiler_lib_search_path="${compiler_lib_search_path} ${prev}${p}"
1017
           fi
1018
           ;;
1019
         # The "-l" case would never come before the object being
1020
         # linked, so don't bother handling this case.
1021
         esac
1022
       else
1023
         if test -z "$postdeps"; then
1024
           postdeps="${prev}${p}"
1025
         else
1026
           postdeps="${postdeps} ${prev}${p}"
1027
         fi
1028
       fi
1029
       ;;
1030
 
1031
    *.$objext)
1032
       # This assumes that the test object file only shows up
1033
       # once in the compiler output.
1034
       if test "$p" = "conftest.$objext"; then
1035
         pre_test_object_deps_done=yes
1036
         continue
1037
       fi
1038
 
1039
       if test "$pre_test_object_deps_done" = no; then
1040
         if test -z "$predep_objects"; then
1041
           predep_objects="$p"
1042
         else
1043
           predep_objects="$predep_objects $p"
1044
         fi
1045
       else
1046
         if test -z "$postdep_objects"; then
1047
           postdep_objects="$p"
1048
         else
1049
           postdep_objects="$postdep_objects $p"
1050
         fi
1051
       fi
1052
       ;;
1053
 
1054
    *) ;; # Ignore the rest.
1055
 
1056
    esac
1057
  done
1058
 
1059
  # Clean up.
1060
  rm -f a.out
1061
else
1062
  echo "ltcf-cxx.sh: error: problem compiling test program"
1063
fi
1064
 
1065
$rm -f confest.$objext
1066
 
1067
case " $postdeps " in
1068
*" -lc "*) need_lc=no ;;
1069
*) need_lc=yes ;;
1070
esac

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